Outgoing email being reported as SPAM

Outgoing email being reported as SPAM

Al of a sudden when I try to send any email from any of my ZOHO accounts, i'm getting back messages from different email recipients that its been blocked due to spam categorization.

This is one message after sending it to my mac address.

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. 


finoa@mac.com Invalid Address, ERROR_CODE :550, ERROR_CODE :5.7.1  Mail from IP 72.5.230.100 was rejected due to listing in Spamhaus SBL. For details please see http://www.spamhaus.org/query/bl?ip=72.5.230.100 : finoa@mac.com